2020+ Silverado HD & Sierra HD Troubleshooting

560 topics in this forum

1. Trailer Calibration

   By Topath, 11 hours ago
   • 0 replies
   • 51 views
   • 
   • Topath
   • 11 hours ago

3. 6.6 Gas Check Engine Light

   By Stand By, Tuesday at 12:25 PM
   • 8 replies
   • 224 views
   • 
   • Stand By
   • Yesterday at 02:27 AM

4. TPMS low pressure alert perplexion

   By Maninthesea, January 28
   • 10 replies
   • 843 views
   • 
   • sabre364
   • Yesterday at 02:03 AM

5. 2024 Chevy 2500 HD camera not working

   By Jercole, Friday at 07:14 PM
   • 2 replies
   • 100 views
   • 
   • waltman
   • Friday at 09:14 PM

6. Metallic slap, chirp type of noise

   By kylant, May 16
   • 3 replies
   • 258 views
   • 
   • kylant
   • Tuesday at 10:12 PM

7. Leaking rear window 1 2 3

   By redpat2061, September 24, 2020
   • 34 replies
   • 9k views
   • 
   • TS423
   • Tuesday at 06:58 PM

8. Tailgate dampener failure?

   By Pryme, Monday at 06:41 PM
   • 2 replies
   • 167 views
   • 
   • Jettech1
   • Tuesday at 02:32 AM

9. 2024 Turn Signals Not Working Properly at Times

   By jd64, May 21
   • 1 reply
   • 176 views
   • 
   • madweazl
   • Monday at 12:56 PM

10. '24 upper glove box sticking

    By madweazl, May 16
    • 1 reply
    • 216 views
    • 
    • Crazy Canuck
    • May 21

11. 2021 GMC Sierra 2500HD 6.6 duramax

    By Calvin Gray, May 17
    • 1 reply
    • 268 views
    • 
    • Brianibew
    • May 18

12. Cold Start Whining Horn Like Noise Comes and Goes? -with video/sound clip 1 2

    By Group_er, December 2, 2022
    • 21 replies
    • 3.7k views
    • 
    • jacob2277
    • May 16

13. jimbo1

    By jimbo1, May 15
    • 0 replies
    • 161 views
    • 
    • jimbo1
    • May 15

14. Power Steering Noise- started at 100 miles! 1 2

    By Limelight, February 4, 2020
    • 24 replies
    • 20k views
    • 
    • Dunn
    • May 15

15. 2023 Chevy 2500 help

    By Npd15, May 5
    • 9 replies
    • 535 views
    • 
    • Dunn
    • May 14

16. 2024 Brake controller Problems

    By Curt Lowe, May 10
    • 2 replies
    • 349 views
    • 
    • Brain Candle
    • May 13

17. 2023 Chevy Silverado 2500HD clunk 1 2

    By Just Mike, March 18
    • 29 replies
    • 1.6k views
    • 
    • Pryme
    • May 12

18. 2020 AT4 HD parking sensors and blind spot not working

    By Wellarmedlamb, April 16
    • 5 replies
    • 554 views
    • 
    • Wellarmedlamb
    • May 11

19. Traction Control Activating on Left Turns 1 2

    By Tville, November 3, 2019   

    • 2020hd
    • 2020 l5p
    • (and 1 more)

      Tagged with:

      • 2020hd
      • 2020 l5p
      • DenaliHD
    • 22 replies
    • 11.8k views
    • 
    • 2DIT
    • May 11

20. Weak Windshield 1 2

    By Dr1ft3r, April 24
    • 20 replies
    • 1k views
    • 
    • Pryme
    • May 10

21. 2021 GMC Sierra 2500 Denali HD Tow Mirror - Issues 1 2

    By 2021GMCLP5, September 22, 2022
    • 21 replies
    • 3.3k views
    • 
    • 2021GMCLP5
    • May 5

22. Low Oil Message 1 2 3

    By bigman32hockey, November 14, 2020
    • 36 replies
    • 9.5k views
    • 
    • KARNUT
    • April 29

23. Multipro Tailgate Working Backwards. 1 2

    By Wellarmedlamb, April 17
    • 15 replies
    • 716 views
    • 
    • Wellarmedlamb
    • April 22

24. 2023 2500 6.6 GAS fuel overflowing when filling up

    By Kevin Wanczyk, April 17
    • 7 replies
    • 526 views
    • 
    • newdude
    • April 19

25. Tailgate spontaneously opening 1 2 3 4 9

    By jsward12, February 26, 2021
    • 128 replies
    • 62.9k views
    • 
    • Dr1ft3r
    • April 14

26. 2020 GMC AT4 - Won't start, won't even attempt to turn over 1 2 3

    By CO 2020 GMC AT4, February 20, 2020
    • 35 replies
    • 39.2k views
    • 
    • GMCustomerService
    • April 13